{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0451010.MRL","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"0451010.MRL","canonicalUrl":"https://icboms.com/littelfuse-inc/0451010.MRL","factsUrl":"https://icboms.com/api/mcp/products/0451010.MRL","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse NANO²® 451 series, surface-mount fast-blow fuse, 0451010.MRL, 10 A, 125 V AC/DC, 2-SMD square end block package, tape and reel.","salesMarkdown":"## SMD fuse for board-level overcurrent protection The Littelfuse 0451010.MRL is a 10 A fast-blow surface-mount fuse from the NANO²® 451 series, housed in a 2-SMD square end block package measuring 6.10 mm x 2.69 mm x 2.69 mm. Rated for 125 V AC or DC, it clears overcurrents with a breaking capacity of 35 A on AC circuits and 50 A on DC circuits — the DC rating is the tighter constraint for fault clearing in a 125 V DC rail. The 0.0056-ohm cold resistance and 26.46 melting I²t mean the fuse handles moderate inrush without nuisance opening; the I²t value is the one to check against your load's surge profile during start-up or capacitor charging. ## Regulatory approvals and sourcing posture CSA, PSE, and UL approved — the UL listing covers the 125 V AC/DC ratings, so the fuse is accepted in North American and Japanese equipment without additional agency review.","metaTitle":"Littelfuse 0451010.MRL NANO² 451 SMD Fuse, 10 A Fast Blow","metaDescription":"Littelfuse 0451010.MRL NANO²® 451 surface-mount fuse, 10 A, 125 V AC/DC, fast blow, 35/50 A breaking capacity. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Color":"-","Series":"NANO²® 451","Package":"Tape & Reel (TR) Cut Tape (CT)","Fuse Type":"Board Mount (Cartridge Style Excluded)","Melting I²t":"26.46","Mounting Type":"Surface Mount","Response Time":"Fast Blow","Package / Case":"2-SMD, Square End Block","Product Status":"Active","Approval Agency":"CSA, PSE, UL","lifecycle_stage":"unknown","Size / Dimension":"0.240\\\" L x 0.106\\\" W x 0.106\\\" H (6.10mm x 2.69mm x 2.69mm)","DC Cold Resistance":"0.0056 Ohms","Voltage Rating - AC":"125 V","Voltage Rating - DC":"125 V","Current Rating (Amps)":"10 A","Operating Temperature":"-55°C ~ 125°C","Breaking Capacity @ Rated Voltage":"35A AC, 50A DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e33e7b2503f3f5110226be89402b64a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the breaking capacity of the 0451010.MRL at 125 V?","answer":"35 A on AC circuits and 50 A on DC circuits at the rated voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/0451010.MRL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/0451010.MRL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}